Marie announced to the audience that her son, Stephen Craig, and his wife, Claire, are expecting their first child together.

Stephen, who is Marie's eldest son, gave his mother the news on his 30th birthday. "He blew out the candles and then blew me away and said, 'You're going to be a grandma!' So, it's really fun," Marie explained.

While Marie maintains a busy schedule, she's certain to make plenty of time for the new baby.

"I'm going to be a grandma!" she gushed. "And I just can't wait. Isn't that fun? [I'm] so excited."